18.21% is the change from 291 to 344
Calculation steps:
[( 344 - 291 ) ÷ 291] x 100 = 18.21%
Formula
Percentage change = [(344 - 291) / 291] x 100
Subtract the new number by the original number
344 - 291 = 53
53 ÷ 291 = 0.18213058419243985
0.18213058419243985 x 100 = 18.21%